Finding the Fourth Proportional to 75,531,948.16, 112,867,940.09 and 56,713,576.72
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Solution
The fourth proportional to 75,531,948.16, 112,867,940.09 and 56,713,576.72 is: 84,747,510.63
Step by Step Solution
- Step 1: Write the proportion equation
75,531,948.16 : 112,867,940.09 = 56,713,576.72 : x - Step 2: Convert to fraction form
75,531,948.16/112,867,940.09 = 56,713,576.72/x - Step 3: Cross multiply
75,531,948.16x = 112,867,940.09 × 56,713,576.72 - Step 4: Simplify right side
75,531,948.16x = 6,401,144,579,522,579 - Step 5: Solve for x
x = 6,401,144,579,522,579/75,531,948.16 - Step 6: Final answer
x = 84,747,510.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.